I'm another Gingher lover!
For "general purpose/scrapping/crafting," I'd go with the 5". The blade is still a reasonable length, and I find the fingers to be more comfortable than my 4" ones.
If she doesn't need the longer blade, I wouldn't go with the 8". They are heavier, and don't get into tight spots as well as a smaller scissor. Love my 8" for fabric, though.